In the "Agents of S.H.I.E.L.D." Season 3 finale, Daisy Johnson was convinced she was going to die thanks to a flash-forward she received from a fellow Inhuman. However, the death she witnessed was not her own; her boyfriend, Lincoln, sacrificed himself in her place, and his death has affected Daisy so greatly that it will carry over into Season 4.
"I think it makes her more ruthless, being so close to what she thought was her own death," star Chloe Bennet told Entertainment Weekly. "And then it happening in one of the worst scenarios she could ever think of, which is the person that she loved doing it for her, I think it changes her in a way where she probably will face life with even more ruthlessness. Also, there's a sense of sadness that was there that I tried to make apparent at the end of the episode."
At the end of Season 3, the show jumped forward in time by 6 months. In a startling turn of events, Daisy has become a bank-robbing fugitive, labeled "Quake" by the news. Meanwhile, Coulson -- who is no longer director -- and Mack are in hot pursuit in order to bring her back into S.H.I.E.L.D. custody.